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					Originally Posted by  daniella3d
					 
				 
				no benifit and it is ugly and look dirty, so I get rid of it anytime I see it on my glass. 
  
It block the pores from the porous rock, making it useless for filtration. 
  
It just consume good element from the water so I would say it is far from being beneficial. 
  
I just remove it when ever I can and I do not tolerate even a tiny bit of it on the glass, not even the back glass.  When it grow on my pumps, I scrape it off. 
			
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 It's a good thing you don't own my tank! You would have to give up sleeping to keep up with it 

My left side pane is so thick, I can't even scrape it with a Kent scraper. 
Personally, I kinda like it. I'm also lazy, so even if I didn't like it, it would still be there.